Roller-table



H, A.. LEWIS AND. A.|3.l woon. ROLLER. TABLE APPLIcATmmmED uac..2 3. 1.918,.

Pated June 1,1920'.

I y u I zsHEETs-SHEET 1 INVENTORS' muy' State of Pennsylvania,

UNITED s'rAEs oFFicE.

HARRY A. LEwIs, 0E NoImIsroWN, AND ALAN E. woon, lor PHILADELPHIA, PENN- sYLvANIA.

ROLLER-TABLE.

To all whom it may concern." f'

Be` it known that we, HARRY' A. LEWIS, of Norristown, county of Montgomery, and ALAN D. wWoon, of Philadelphia, county of Philadelphia, State of Pennsylvania, citizens ofY the United States,`havefinve nted a new and useful Improvement vin Roller-Tables, 1;) and we do herebydeclare the following to be a full, clear, and exact description thereof. i

The object of our invention is to con'- struct roller tables used especially for handling hot material, such as billets, blooms, plates or the like, in connection with the treatment of in other metal working apparatus, the handling of the same, and the like, so that the billets can be fed longitudinally andf'turnedv upon the table without being manually handled. The invention is anim rovement upon Letters Patent granted to arry Lewis, October 20, 1914, No'.1,114,621.` Its main object is to provide for taking a better hold upon the hot billet or other object.

It consists, generally stated, in such table having two sets of rollers thereon, means for independently driving each set, the upper working surfaces o-f one set being out of line with the upper working surfaces of the other set, and such upper working surfaces being spirally ribbed, so that the article supported on the table will be engaged by such spiral surfaces and turned thereon, or moved along said rollers as desired.

In the accompanying drawings, Figure 1 is a plan view of a rolling mill table embodying the invention, the rolling mill and the smooth roller-table on one side thereof being illustrated to show the broad construction covered in said Patent No. 1,114,621.

Fig. 2 is an enlarged side view of a pair of rollers embodylng the invention showing a billet resting on the rollers; Fig. 3 is an enlarged plan view illustrating the turning of the billet; Figs. 4 ,and 5 are enlarged plan views of other forms of the` inventlon.

Theinvention is illustrated in connection4 with apparatus shown in the said Lewis Patent No. 1,114,621, of the general type. 1, |1 are the side 'frames of the table having sets of bearings 2, 2 for the sets of of the rolling mill.

(Case ample, i tor 6a the same in rolling mills or4 'setslof rollers can be Specification of Letters Patent. Y Patented June 1, 1920.

App1ication filed December 23, 191LWeria1,No..268,002.--f" I' rollers 4, 5 in which the rollers alternate on thetable, the 'roller table being illus; trateda's mounted'in front of the rolling mill which is shown in dotte lines, and like roller tables being mounted on each side The two sets of rollers alternating with each other are driven-by gearmg on each side of the table, for example, the shaft 6 on one side of the table being connected' by gearing 7 Aand 8 to one set of rollers 'while theshaft 9 on the other side of the table is connected by gearing 10 and 11 to thel other s et of rollers. These respective shafts are illustrated las separately and independently driven,l for eX- the shaft 6 being driven by the mothrough 'gearing 12, 13, 14 and 15, While the shaft 94 is driven by the motor 16', which is 4connected to the shaft by gear-v ing 17 andf18, v19and 20.y Thus the two driven either in the same direction, for example, as in feeding the billets longitudinally to or receiving them fromthe reducing rolls, or they may be driven in opposite directions for turn-l ingthe billets upon' the roller table. This lpart of the mechanism is illustrated as the same as in the said patent. In the rolling of heavy billets, the metalv 'is heated to a' very high heat and becomes verysoft, and the main object of the present invention is to-'provide .means for positively taking hold of the soft heated billet and operating to turn same by positive pushing or pulling means. Io this end, the rollers .of the two indenpendentsets are so formed that the .working surfaces of one. set of rollers are on one side of the center of the table, While the working surfaces of the other set of rollers are on the other side of the center of the table, as fully set forth in said Lewis patent. This can e accomplished in difi'erentways, for example, the `most approved way being that illustrated in Fig. 1, wherethe working faces of one set of rollers are tapered in one direction, While the working faces of the other set of rollers .are tapered in the opposite ldirec- A ends thereof, and the lspiral ribs of the are spirally ribbed as aty 23 and 24:, the

Aing surfaces of the rollers', z". e., the portion of one roller which extends above the i smaller portionof the next adjoining roller .Ways to rolling mill equipments.

of the other set. For example, the spiral ribs -of the rollers of oneset extend from the mid-portion of those rollers to the larger rollers of the other set extend in like manner from the mid-portion thereof to the larger ends of said rollers.

ft' will be understood that the rollers which form the subject matter of our present invention may be applied in various Ordinarily, it is thepractice tovturn billets upon the feed t'able on the feeding side of the mill and the billet usually is turned while resting upon the part of the roller table whichv is close to the rolls.' Under these circumstances, only the rollers on the feeding side of the rolls need to be constructed laccording to our present invention, and if desired, it is sufficient to provide such rolls upon a portion of the feed table only.

' Such an arrangement is shown in Fig. 1

of the accompanying drawing. It will also lbe understood, however, that the rollers both at the incoming vside of the mill and at the discharge side of the millmaybe of the modified type herein shown, our present invention not being limited to any particular tables or portions of tables.

rIfhe billets yare usually several tons .in

' Weight, running up to over twenty tons, and

when highly heated are in very soft condition, and because of their Weight sink down upon the rollers and in the turning of the hot soft billet upon the roller table, these spiral ribs take into the billet and obtain a strong hold thereon, and when the Workingfaces of the one set of-rollers are turning in one direction, and the working faces l of the other set are turning in the opposite direction, these spiral ribs push -the billet around and take a better hold thereon than would the rollers of smooth surface. Thus, the spiral ribs at one lside of the body of metal are biting into the hot soft metal and pushing the billet resting thereon in one direction while the spiral ribs on the other side of the vtable are bitinginto the billet.

and pushing it in the opposite direction, and by taking" positive hold on-the billet cause the more rapid and positive turning thereof.

owever, when it is desired to move the billet 'longitudinally on `the roller table, as

v the other,

driving each set, the said sets of rollers havall'r'the rollers move in the same direction,l a

positive pushing feeding action in a substantially straight' line is obtained. ln this action .also the spiral ribs take; a better'hold upon the soft heated billet than do smooth faced tapering rolls.

If desired, the spiral ribbing may be made discontinuous being interrupted at intervals and -so providing actual pushing faces The principle of the invention may be` employed with different forms of rollers; for example,l in Fig; 5, we have shown the nollers'with raised collars or faces 30 at one side of one set and like raised faces at the ether side of the other set 3l, the main surfaces of said collars being of the same general height and said -ifalces having spiral ribs 32, 33" formed thereon. With' this construction, the hot soft billetlrests upon the projecting collars, and in turning the billet the spiral faces of the collars take positive hold thereon and cause the more easy turning of the billet than if the faces of the collars were smooth.

The above are illustrations-of the application of the invention, the principle of which -is the providing of spiral pushing surfaces upon the alternating Work faces of the two sets of rollers, whichtake positive hold on the metal body restingupon the same and thereby provide for the more positive pushing of the same, either in turning it or in its' longitudinal movement on the roller table and in connection either withrolling mills or with other forms of metal-handling apparatus. v y y What we claim is:

1. The combination in a roller table of.

two. sets of rollers,one set alternating with the other set, and means for independently driving each set, the said sets of rollers having working surfaces on one set at one end -of the rollers only and working surfaces -of the other -set at the other end of the roll- .ers only, and said working surfaces being ribbed transversely of the rollers, so that the article supported can beengaged by the transversely ribbed surfaces .and turned or moved longitudinally.

2. The combination in a roller. table of two sets of rollers and means kfor independently' ing raisedworking surfaces of one set located at oneside of the center of the-rollers and raised working surfaces of the `other one set alternating withA set located on the opposite side of the censurfaces being spirally ribbed so that the article. supported can be engaged by the 'spirally -ribbed faces of the rollers andV turned or moved longitudinally.

3. The combination in a roller table of two sets of rollers, one set alternating with the other, and means for independently driving each set, the said sets of rollers having Working faces of one set tapered in o ne direction and the Working faces of the other set of rollers tapered in the opposite direction, and said Working faces being spirally ribbed so that the article supported on the rollers can be engaged by the spirally ribbed faces and turned or moved longitudinally.

4. The combination in a roller table of tWo sets of rollers one set alternating with the other, and means for independently driving each set and having raised Working surfaces of one set located on one side of the center of the rollers and raised Working surfaces of the other set located on the opposite side of the center of the rollers, and said Working surfaces having interrupted ribs so that the article supported thereon ,can be engaged by theinterrupted ribbed surfaces andy turned or moved longitudinally.

' 5. The combination in a roller table of `two-sets of rollers one set alternating With the other, and means for independently driving each set, and having raised Working faces of one set located at one side of the .center of the rollers and raised Working surfaces of the, other set located on the opposi/te side of the center of the rollers, said working surfaces being provided With interrupted spiral ribbing so that the article supported on the rollers can be engaged by the interrupted spirally ribbed faces thereof and turned or moved longitudinally.

In testimony whereof We, the said HARRY A. LEWIS and ALAN D. Woon, have hereunto set our hands.

HARRY A. LEWIS.

ALAN D. WOOD.

'Witnessesz J. MENDENHALL, JAMES R. PARR. v 

